#include <linux/delay.h>
#include <linux/sched.h>
#include <linux/spinlock.h>
#include <linux/types.h>
#include <linux/videodev2.h>
#include <linux/io.h>
#include <linux/pm_runtime.h>
#include <media/videobuf2-core.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-device.h>
#include <media/v4l2-mem2mem.h>
#include <media/v4l2-mediabus.h>
#include <media/videobuf2-dma-contig.h>
#include "gsc-regs.h"

Data Structures
struct	gsc_fmt

struct	gsc_input_buf

struct	gsc_addr

struct	gsc_ctrls

struct	gsc_scaler

struct	gsc_frame

struct	gsc_m2m_device

struct	gsc_pix_max

struct	gsc_pix_min

struct	gsc_pix_align

struct	gsc_variant

struct	gsc_driverdata

struct	gsc_dev

struct	gsc_ctx

Macros
#define	CONFIG_VB2_GSC_DMA_CONTIG 1

#define	GSC_MODULE_NAME "exynos-gsc"

#define	GSC_SHUTDOWN_TIMEOUT ((100*HZ)/1000)

#define	GSC_MAX_DEVS 4

#define	GSC_M2M_BUF_NUM 0

#define	GSC_MAX_CTRL_NUM 10

#define	GSC_SC_ALIGN_4 4

#define	GSC_SC_ALIGN_2 2

#define	DEFAULT_CSC_EQ 1

#define	DEFAULT_CSC_RANGE 1

#define	GSC_PARAMS (1 << 0)

#define	GSC_SRC_FMT (1 << 1)

#define	GSC_DST_FMT (1 << 2)

#define	GSC_CTX_M2M (1 << 3)

#define	GSC_CTX_STOP_REQ (1 << 6)

#define	fh_to_ctx(__fh) container_of(__fh, struct gsc_ctx, fh)

#define	is_rgb(x) (!!((x) & 0x1))

#define	is_yuv420(x) (!!((x) & 0x2))

#define	is_yuv422(x) (!!((x) & 0x4))

#define	gsc_m2m_active(dev) test_bit(ST_M2M_RUN, &(dev)->state)

#define	gsc_m2m_pending(dev) test_bit(ST_M2M_PEND, &(dev)->state)

#define	gsc_m2m_opened(dev) test_bit(ST_M2M_OPEN, &(dev)->state)

#define	ctrl_to_ctx(__ctrl) container_of((__ctrl)->handler, struct gsc_ctx, ctrl_handler)

Enumerations
enum	gsc_dev_flags { ST_SUSPEND, ST_M2M_OPEN, ST_M2M_RUN, ST_M2M_PEND, ST_M2M_SUSPENDED, ST_M2M_SUSPENDING }

enum	gsc_irq { GSC_IRQ_DONE, GSC_IRQ_OVERRUN }

enum	gsc_datapath { GSC_CAMERA = 0x1, GSC_DMA, GSC_MIXER, GSC_FIMD, GSC_WRITEBACK }

enum	gsc_color_fmt { GSC_RGB = 0x1, GSC_YUV420 = 0x2, GSC_YUV422 = 0x4, GSC_YUV444 = 0x8 }

enum	gsc_yuv_fmt { GSC_LSB_Y = 0x10, GSC_LSB_C, GSC_CBCR = 0x20, GSC_CRCB }

Functions
: format description
struct gsc_fmt - the driver's internal color format data : Media Bus pixel code, -1 if not applicable : the fourcc code for this format, 0 if not applicable : Y/C order : Chrominance order control : number of physically non-contiguous data planes : number of physically contiguous data planes : per plane driver's private 'number of bits per pixel' : flags indicating which operation mode format applies to
void	gsc_set_prefbuf (struct gsc_dev gsc, struct gsc_frame frm)

int	gsc_register_m2m_device (struct gsc_dev *gsc)

void	gsc_unregister_m2m_device (struct gsc_dev *gsc)

void	gsc_m2m_job_finish (struct gsc_ctx *ctx, int vb_state)

u32	get_plane_size (struct gsc_frame *fr, unsigned int plane)

struct gsc_fmt *	get_format (int index)

struct gsc_fmt *	find_fmt (u32 pixelformat, u32 mbus_code, u32 index)

int	gsc_enum_fmt_mplane (struct v4l2_fmtdesc *f)

int	gsc_try_fmt_mplane (struct gsc_ctx ctx, struct v4l2_format f)

void	gsc_set_frame_size (struct gsc_frame *frame, int width, int height)

int	gsc_g_fmt_mplane (struct gsc_ctx ctx, struct v4l2_format f)

void	gsc_check_crop_change (u32 tmp_w, u32 tmp_h, u32 w, u32 h)

int	gsc_g_crop (struct gsc_ctx ctx, struct v4l2_crop cr)

int	gsc_try_crop (struct gsc_ctx ctx, struct v4l2_crop cr)

int	gsc_cal_prescaler_ratio (struct gsc_variant var, u32 src, u32 dst, u32 ratio)

void	gsc_get_prescaler_shfactor (u32 hratio, u32 vratio, u32 *sh)

void	gsc_check_src_scale_info (struct gsc_variant var, struct gsc_frame s_frame, u32 wratio, u32 tx, u32 ty, u32 hratio)

int	gsc_check_scaler_ratio (struct gsc_variant *var, int sw, int sh, int dw, int dh, int rot, int out_path)

int	gsc_set_scaler_info (struct gsc_ctx *ctx)

int	gsc_ctrls_create (struct gsc_ctx *ctx)

void	gsc_ctrls_delete (struct gsc_ctx *ctx)

int	gsc_prepare_addr (struct gsc_ctx ctx, struct vb2_buffer vb, struct gsc_frame frame, struct gsc_addr addr)

void	gsc_hw_set_sw_reset (struct gsc_dev *dev)

int	gsc_wait_reset (struct gsc_dev *dev)

void	gsc_hw_set_frm_done_irq_mask (struct gsc_dev *dev, bool mask)

void	gsc_hw_set_gsc_irq_enable (struct gsc_dev *dev, bool mask)

void	gsc_hw_set_input_buf_masking (struct gsc_dev *dev, u32 shift, bool enable)

void	gsc_hw_set_output_buf_masking (struct gsc_dev *dev, u32 shift, bool enable)

void	gsc_hw_set_input_addr (struct gsc_dev dev, struct gsc_addr addr, int index)

void	gsc_hw_set_output_addr (struct gsc_dev dev, struct gsc_addr addr, int index)

void	gsc_hw_set_input_path (struct gsc_ctx *ctx)

void	gsc_hw_set_in_size (struct gsc_ctx *ctx)

void	gsc_hw_set_in_image_rgb (struct gsc_ctx *ctx)

void	gsc_hw_set_in_image_format (struct gsc_ctx *ctx)

void	gsc_hw_set_output_path (struct gsc_ctx *ctx)

void	gsc_hw_set_out_size (struct gsc_ctx *ctx)

void	gsc_hw_set_out_image_rgb (struct gsc_ctx *ctx)

void	gsc_hw_set_out_image_format (struct gsc_ctx *ctx)

void	gsc_hw_set_prescaler (struct gsc_ctx *ctx)

void	gsc_hw_set_mainscaler (struct gsc_ctx *ctx)

void	gsc_hw_set_rotation (struct gsc_ctx *ctx)

void	gsc_hw_set_global_alpha (struct gsc_ctx *ctx)

void	gsc_hw_set_sfr_update (struct gsc_ctx *ctx)

Macro Definition Documentation

#define CONFIG_VB2_GSC_DMA_CONTIG 1

Definition at line 31 of file gsc-core.h.

#define ctrl_to_ctx ( __ctrl ) container_of((__ctrl)->handler, struct gsc_ctx, ctrl_handler)

Definition at line 104 of file gsc-core.h.

#define DEFAULT_CSC_EQ 1

Definition at line 40 of file gsc-core.h.

#define DEFAULT_CSC_RANGE 1

Definition at line 41 of file gsc-core.h.

#define fh_to_ctx ( __fh ) container_of(__fh, struct gsc_ctx, fh)

Definition at line 95 of file gsc-core.h.

#define GSC_CTX_M2M (1 << 3)

Definition at line 46 of file gsc-core.h.

#define GSC_CTX_STOP_REQ (1 << 6)

Definition at line 47 of file gsc-core.h.

#define GSC_DST_FMT (1 << 2)

Definition at line 45 of file gsc-core.h.

#define gsc_m2m_active ( dev ) test_bit(ST_M2M_RUN, &(dev)->state)

Definition at line 100 of file gsc-core.h.

#define GSC_M2M_BUF_NUM 0

Definition at line 36 of file gsc-core.h.

#define gsc_m2m_opened ( dev ) test_bit(ST_M2M_OPEN, &(dev)->state)

Definition at line 102 of file gsc-core.h.

#define gsc_m2m_pending ( dev ) test_bit(ST_M2M_PEND, &(dev)->state)

Definition at line 101 of file gsc-core.h.

#define GSC_MAX_CTRL_NUM 10

Definition at line 37 of file gsc-core.h.

#define GSC_MAX_DEVS 4

Definition at line 35 of file gsc-core.h.

#define GSC_MODULE_NAME "exynos-gsc"

Definition at line 32 of file gsc-core.h.

#define GSC_PARAMS (1 << 0)

Definition at line 43 of file gsc-core.h.

#define GSC_SC_ALIGN_2 2

Definition at line 39 of file gsc-core.h.

#define GSC_SC_ALIGN_4 4

Definition at line 38 of file gsc-core.h.

#define GSC_SHUTDOWN_TIMEOUT ((100*HZ)/1000)

Definition at line 34 of file gsc-core.h.

#define GSC_SRC_FMT (1 << 1)

Definition at line 44 of file gsc-core.h.

#define is_rgb ( x ) (!!((x) & 0x1))

Definition at line 96 of file gsc-core.h.

#define is_yuv420 ( x ) (!!((x) & 0x2))

Definition at line 97 of file gsc-core.h.

#define is_yuv422 ( x ) (!!((x) & 0x4))

Definition at line 98 of file gsc-core.h.

Enumeration Type Documentation

enum gsc_color_fmt

Enumerator:

GSC_RGB
GSC_YUV420
GSC_YUV422
GSC_YUV444

Definition at line 81 of file gsc-core.h.

enum gsc_datapath

enum gsc_datapath - the path of data used for G-Scaler : from camera : from/to DMA : to local path : from FIMD

Enumerator:

GSC_CAMERA
GSC_DMA
GSC_MIXER
GSC_FIMD
GSC_WRITEBACK

Definition at line 73 of file gsc-core.h.

enum gsc_dev_flags

Enumerator:

ST_SUSPEND
ST_M2M_OPEN
ST_M2M_RUN
ST_M2M_PEND
ST_M2M_SUSPENDED
ST_M2M_SUSPENDING

Definition at line 49 of file gsc-core.h.

enum gsc_irq

Enumerator:

GSC_IRQ_DONE
GSC_IRQ_OVERRUN

Definition at line 61 of file gsc-core.h.

enum gsc_yuv_fmt

Enumerator:

GSC_LSB_Y
GSC_LSB_C
GSC_CBCR
GSC_CRCB

Definition at line 88 of file gsc-core.h.

Function Documentation

struct gsc_fmt* find_fmt	(	u32 *	pixelformat,
		u32 *	mbus_code,
		u32	index
	)

read

Definition at line 199 of file gsc-core.c.

struct gsc_fmt* get_format ( int index )

read

Definition at line 191 of file gsc-core.c.

u32 get_plane_size	(	struct gsc_frame *	fr,
		unsigned int	plane
	)

int gsc_cal_prescaler_ratio	(	struct gsc_variant *	var,
		u32	src,
		u32	dst,
		u32 *	ratio
	)

Definition at line 230 of file gsc-core.c.

void gsc_check_crop_change	(	u32	tmp_w,
		u32	tmp_h,
		u32 *	w,
		u32 *	h
	)

Definition at line 484 of file gsc-core.c.

int gsc_check_scaler_ratio	(	struct gsc_variant *	var,
		int	sw,
		int	sh,
		int	dw,
		int	dh,
		int	rot,
		int	out_path
	)

Definition at line 596 of file gsc-core.c.

void gsc_check_src_scale_info	(	struct gsc_variant *	var,
		struct gsc_frame *	s_frame,
		u32 *	wratio,
		u32	tx,
		u32	ty,
		u32 *	hratio
	)

Definition at line 265 of file gsc-core.c.

int gsc_ctrls_create ( struct gsc_ctx * ctx )

Definition at line 750 of file gsc-core.c.

void gsc_ctrls_delete ( struct gsc_ctx * ctx )

Definition at line 780 of file gsc-core.c.

int gsc_enum_fmt_mplane ( struct v4l2_fmtdesc * f )

Definition at line 299 of file gsc-core.c.

int gsc_g_crop	(	struct gsc_ctx *	ctx,
		struct v4l2_crop *	cr
	)

Definition at line 494 of file gsc-core.c.

int gsc_g_fmt_mplane	(	struct gsc_ctx *	ctx,
		struct v4l2_format *	f
	)

Definition at line 455 of file gsc-core.c.

void gsc_get_prescaler_shfactor	(	u32	hratio,
		u32	vratio,
		u32 *	sh
	)

Definition at line 248 of file gsc-core.c.

void gsc_hw_set_frm_done_irq_mask	(	struct gsc_dev *	dev,
		bool	mask
	)

Definition at line 39 of file gsc-regs.c.

void gsc_hw_set_global_alpha ( struct gsc_ctx * ctx )

Definition at line 399 of file gsc-regs.c.

void gsc_hw_set_gsc_irq_enable	(	struct gsc_dev *	dev,
		bool	mask
	)

Definition at line 51 of file gsc-regs.c.

void gsc_hw_set_in_image_format ( struct gsc_ctx * ctx )

Definition at line 167 of file gsc-regs.c.

void gsc_hw_set_in_image_rgb ( struct gsc_ctx * ctx )

Definition at line 147 of file gsc-regs.c.

void gsc_hw_set_in_size ( struct gsc_ctx * ctx )

Definition at line 125 of file gsc-regs.c.

void gsc_hw_set_input_addr	(	struct gsc_dev *	dev,
		struct gsc_addr *	addr,
		int	index
	)

Definition at line 91 of file gsc-regs.c.

void gsc_hw_set_input_buf_masking	(	struct gsc_dev *	dev,
		u32	shift,
		bool	enable
	)

Definition at line 63 of file gsc-regs.c.

void gsc_hw_set_input_path ( struct gsc_ctx * ctx )

Definition at line 112 of file gsc-regs.c.

void gsc_hw_set_mainscaler ( struct gsc_ctx * ctx )

Definition at line 353 of file gsc-regs.c.

void gsc_hw_set_out_image_format ( struct gsc_ctx * ctx )

Definition at line 284 of file gsc-regs.c.

void gsc_hw_set_out_image_rgb ( struct gsc_ctx * ctx )

Definition at line 264 of file gsc-regs.c.

void gsc_hw_set_out_size ( struct gsc_ctx * ctx )

Definition at line 235 of file gsc-regs.c.

void gsc_hw_set_output_addr	(	struct gsc_dev *	dev,
		struct gsc_addr *	addr,
		int	index
	)

Definition at line 102 of file gsc-regs.c.

void gsc_hw_set_output_buf_masking	(	struct gsc_dev *	dev,
		u32	shift,
		bool	enable
	)

Definition at line 77 of file gsc-regs.c.

void gsc_hw_set_output_path ( struct gsc_ctx * ctx )

Definition at line 220 of file gsc-regs.c.

void gsc_hw_set_prescaler ( struct gsc_ctx * ctx )

Definition at line 341 of file gsc-regs.c.

void gsc_hw_set_rotation ( struct gsc_ctx * ctx )

Definition at line 366 of file gsc-regs.c.

void gsc_hw_set_sfr_update ( struct gsc_ctx * ctx )

Definition at line 417 of file gsc-regs.c.

void gsc_hw_set_sw_reset ( struct gsc_dev * dev )

Definition at line 19 of file gsc-regs.c.

void gsc_m2m_job_finish	(	struct gsc_ctx *	ctx,
		int	vb_state
	)

Definition at line 72 of file gsc-m2m.c.

int gsc_prepare_addr	(	struct gsc_ctx *	ctx,
		struct vb2_buffer *	vb,
		struct gsc_frame *	frame,
		struct gsc_addr *	addr
	)

Definition at line 789 of file gsc-core.c.

int gsc_register_m2m_device ( struct gsc_dev * gsc )

Definition at line 720 of file gsc-m2m.c.

void gsc_set_frame_size	(	struct gsc_frame *	frame,
		int	width,
		int	height
	)

Definition at line 220 of file gsc-core.c.

void gsc_set_prefbuf	(	struct gsc_dev *	gsc,
		struct gsc_frame *	frm
	)

Definition at line 330 of file gsc-core.c.

int gsc_set_scaler_info ( struct gsc_ctx * ctx )

Definition at line 623 of file gsc-core.c.

int gsc_try_crop	(	struct gsc_ctx *	ctx,
		struct v4l2_crop *	cr
	)

Definition at line 507 of file gsc-core.c.

int gsc_try_fmt_mplane	(	struct gsc_ctx *	ctx,
		struct v4l2_format *	f
	)

Definition at line 378 of file gsc-core.c.

void gsc_unregister_m2m_device ( struct gsc_dev * gsc )

Definition at line 766 of file gsc-m2m.c.

int gsc_wait_reset ( struct gsc_dev * dev )

Definition at line 24 of file gsc-regs.c.

Data Structures

Macros

Enumerations

Functions

Macro Definition Documentation

Enumeration Type Documentation

Function Documentation